Rotary for well-tubing.



S. N. HALL.

ROTARY POR WELL TUBING. APPLIUATION FILED JULY e, 190s.

956,081. Patented Apr.26,191o.

asumir-sassi' 1.

S. N. HALL.

ROTARY FOR WELL TUBING.

APPLICATION FILED JULY 6. 190s.

. 956,081. Patented Apnz, 1910.

S. N. HALL.v

ROTARY FOR WELL TUBING.

APPLICATION FILED JU'LY 6,'1906.

956,081. Y Patented Apr.- 26, 1910.

3 SHEETS-SHEET 3.

` l INVENTOR Lv/)fa/e//Y/ya/ Slik Houston, in the county of Harris and b'tate means for holding the pipe or sleeve against.

. forming of fresh grooves, and defaeing cuts whereby..a water headswivel may be 'used construct and alsoonein which the several upper portion of the sleeve and. clamp, a portion of the drilling member being shown '1'0 all whom 'it may concem:

ing, of which the following is a specification.

sleeve up.

'serted in the rotary'and to cut the grooves l to such a depth that the rollerswill enterorder.-

the following specification and illustrated in parts broken away to show underlying conclamp, Fig. 4 is a plan view of the collar i -Figa-5 is agplan view 'showing a modified sAiunni;`.'1\r. HALL, lor HoUsToN, TEXAS.

' ROTARY FOR WELL-TUBING.

Speeication of Letters Patent.

Patented Apr.. 2 6, w1910.

Application led July 6, 1908. `Serial No. '442,157.;

Beit known that I, SAMUEL HALL, citizen of lthe United States, residing at of Texas, have invented certain new and useful Improvements in Rotarios for Well-Tub My -invention relates to new and useful improvements in rotai'ies for well tubing:

The object ot' the invention 1s t o provide rotation independent of the table and to accomplish this without marring or cutting the Rollers now used'with rotaries either do not hold the sleeve'against rotation indesleeve each time the rollers are adjusted Therefore one ob] I et of invention is to jections or grooves, before the' sleeve is inthe same grooves each time,-thus preventing cutting up l of the sleeve surface and the each time the rollers' are adjusted to the sleeve; thus prolonging thelife of the sleeve. Another feature resides in the provision and also'the means by which the sleeve and the drilling member may lbe simultaneously or independently raised or lowered.

F in ally the object of the invention is to provide a device of the character described that will be strong, durable, efficientand simple and comparatively Y inexpensive to parts will not be liable to get out of working lVith the above .and` other objects in View, my invention has particular relation to certain novel featuresof. construction and operation, an example of which is described in the accompanyingdrawings wherein:

Figure 1 1s an elevation of the rotary with struction, Fig. 2 is a` vertical section of the in elevation, Fig. Sis a lan view of the form of sleeve, Fig. (j is a partial elevation of the same, -Figs. 7 modified forms 'of sleeves andv rollers, Fig. 10 is a partial elevation'showing a modified -forni o clamp and col1ar,`Fig." 11 is a detailed elevation of the clamp and collar, F ig.' 12 is a plan view othe'same, and Fig. 13 is a vertlcal section ofthe same.`

8 and 9-are details'of In the drawings, the numeral- 1 designates I the usual rotary table having the ring bevel gear 2 on its -under side. Thisgearring meshes with a bevel pinion 3lg'eyed on a power shaft 4 mounted in a'bearing1 5 sup-v ported on ,theframe 6. This frame 1s suitabl constructed to -support the bearing soc et-or cup? in whichthe table is rotatably-snpported." i i In practice in the field it has 'been customary to use a. device very similar to that shown in Fig. 7, but the pipe bein comparatively sot and the' Wheels. of ard steel, irregular channels orgrooves are cut'fin'each lengthrof pipe. If the section hasto be removed for any causc,'the wheels are moved laterally and when the section is replaced, if the driller not careful in adjusting the parts, other channels 'or grooves will be cut.

In order, to obviate marring each length or section of pipe, I provide -a protecting sleeve or pi e 8. In Figs. 1 to 4 the sleeve is formed wit opposed vertical rows of per-foratio'nslor` openings 9 adapted to receive spur or stud wheels 10 mounted in bearing brackets 11 on opposite sides of the sleeve. The brackets are secured to the table by bolts 12 as shown in Fig. 5 and may be adjusted laterally to move the wheels into and out of engagement with the sleeve.

It` is obvious that the sleeve may freely move vertically, but cannot ,rotate within the table through which it asses. This sleeve protects the pipe o rdri ling member as will hereinafter be described.

At its upper end; the sleeve is threaded to receive a collar 1.3 provided with oppositely i .and lowered.

l `.On the upper. end of the 19 a water independently of the sleeve. For preventing the sleeve from dropping suddenly when the clamp and collar are disconnected, the collar is formed with ears 23 between which a dog 24 is p ivoted. Y"This dog projects through an opening 25 in the sleeve into close proximity to the pipe 19, while a' fiat spring 2G secured to the outer side ofthe sleeve'bears against the dog and holds it in position as is shown Y in Figs. 1 and 2.

In' Figs. 5 and 6 the s leeve Shas strips 27 securedon lts opposite sides to' be engaged by wheels 28 in the form of spools, the construction being otherwise the same.' Fig. 7'

shows the sleeve first formed with V-shaped .vertical channels 29 ada ted to be engaged I. 'byedisk whe'els 30. This diters from the usu'al construction in which the channels Vare formed after the sleeve is set in position.V

' In Fig 8 the sleeve 8 is pressed inward to' form opposite vertical channels 3'1 shaped to receive concaved wleels 32; while Fig. 9 shows the sleeve 8 provided with opposed vertical grooves 33 divided each by a central lrib 34 and adapted to be engaged by ribbed wheels 35.

All of'the forins act to evi-mit a free vcrtieal movement of the seeve but hold it against rotation independent of the table.

It is to be understood that the sleeve may be used as vthe upper section of the drilling member and lifted out and screwed to the new section eachtime a section of pipe is added.

In Figs. 10 to 13 inclusive, :i modification of the clamp and collar is set forth'. This contemplates the formation of the collar 36, which 'is substantially the same as thc collar 13, integral with one side of the clamp 37'. The other part or half 38 of the clamp is pivoted to the part 37 by a bolt Ll0 and connected thereto by an eye bolt 39.

The sleeve is provided with means for rcceiviug the wheels to prevent rotation independent of the table, the clam and collar 'connections and the water hea( swivel appliance, are' invaluable to the driller vand the 'l ivclls the outer casings or sleeves arev removed after the well is drilled. I f the casing or sleeves are badly cut or recessed they eannot bc used again and last only a.-

con'iparatively short time. At presentJ the rotaries used have rollers which eut into the 'casing or pipes, cutting into each outer se@ tion as it is worked down into the well. This is very expensive.

.With my invent-ion as above describedla single section or casing length is provided with recesses, grooves or projections receiving the guide wheels and is raised and lengths ot' plain pipe screwed on the lower end as the Well is drilled. -These lengths of plain pipe never come into contact with the wheels or rollers and their surfaces remain unscratched.

The working section of my invention may -be used many times where not one but all the outer sections which are cut by the present method, last ior the drilling of only two or three wells. lVith my rotary the same groove orhreeess is used each time. I have seen sections with eight and ten longitudinalv cuts as well as spiral cuts in their surfaces. What I claim, is: 1. In a rotary for well tubing a rota table, a sleeve mounted in the table, a dri ing member operating in the sleeve, a collar mounted on the sleeve, means for lholding the collar on the sleeve a dog mounted' to en age the drilling member, and means for ho ding the dog in position.

2. In a rotary for Well tubing, 81 frame a rotary table mounted on the frame, a p urality of adjustable bearings mounted on the table, wheelsV mounted in the bearings, a 'sleeve mounted in the table, adrilling member mounted within the sleeve, a water head swivel mounted on the member, a collar on the sleeve and adapted clamped about the drilling member and having connection with the sleeve, means for adiustinff the collar, a .dog mounted on the collar atapted to engage with the drilling member, and means Ier holding the dog in position.

3. In av rotary for well tubin a rotary table, a sleeve mounted in the teile, wheels arranged to guide' the sleeve vertically, a drilling member operating in the sleeve, and a spring dog supported by the sleeve adapt:- ed to engage the drilling member.'

l. In a machine of the character described' a rotary table, non-cutting rollers mounted on said table, -and a sleeve arranged to operate through-said table and to' be rotated therewith, saidsleeve being provided with means freely engagingthe rollers to otter substantially no resistance to the endwise movement of the sleeve but preventing independent rotary movement thereof.

-5. In avniaehine of ythe character described, a rotary table, non-cutting rollers 'mounted on said table, and a sleeve arranged engage the rollers to oer'substantially no .re-`

' sistance to the endwise movement of the sleeve but preventing independent rotary Jin thesleeve in'one direction..

f' M ingfand'garcouplingbetween said. sleeve and movement thereof.

6. In' a Amachine of the character described, a rotary table, a sleeve adapted to Work, .'throughv said table and be rotated therewith, adrill member adapted to pass freely through the sleeve in one direction, and means on the sleeve arranged to automatically bind upon the' drill Amember `to prevent movement thereof through the sleeve the 'opposite direction.

In: a mzichine, of the character de-. scribed, the,slfeeve,`"th e drill member theredrill "niemb threaded toV the, sleeve and clamped Ye'fdrill fmember, in combination with nl' pivoted dog carried by said coupling adapted to automatically impinge upon the Adrill member to prevent movement thereof 8. In a machine of the lcharacterdescribed, the sleeve, the drill member therein, anda coupling between sleeve and drill member,' inI combinationv with. a pivoted dog carried by said coupling ada ted'to automatically impinge upon the dril mem ber to prevent movement thereof inthe sleeve in one direction.

name' to this specification in thel presence of two subscribing Witnesses. y

SAMUEL N. HALL.

lVitnesses: w

A. SoHLAr'rI, WM. A. CATHEL,

- A 430 l In testimony whereof I haveigned my' 

